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autoconf: separate -g3 and -ggdb

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The -g3 and -ggdb options are really separate, treat them as
such. Trying -ggdb3 -g3 is not only inefficient, it is wrong when the
compiler supports only -ggdb.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin (Intel) 2026-06-04 10:42:01 -07:00
parent ccb73b72b2
commit 3ee140842f
1 changed files with 4 additions and 3 deletions
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7
autoconf/m4/pa_option_debug.m4
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@ -5,9 +5,10 @@ dnl Set debug flags and optimization flags depending on if
dnl --enable-debug is set or not. Some flags are set regardless...
dnl --------------------------------------------------------------------------
AC_DEFUN([PA_OPTION_DEBUG],
[PA_ARG_DISABLED([gdb], [disable gdb debug extensions],
[PA_ADD_LANGFLAGS([-g3])], [PA_ADD_LANGFLAGS([-ggdb3],[-g3])])
[PA_ADD_LANGFLAGS([-g3])
PA_ARG_DISABLED([gdb], [disable gdb debug extensions],,
[PA_ADD_LANGFLAGS([-ggdb])])
PA_ARG_ENABLED([debug], [optimize for debugging],
[PA_ADD_LANGFLAGS([-Og],[-O0])
[PA_ADD_LANGFLAGS([-Og],[-O0])
$1],
[$2])])